CiprianDorinCraciun/Presentations/2009/ItFest/Slides/14-LinuxPatchExample

Linux -- Patch example

• example (original):

  • From: Jean Delvare <khali@linux-fr.org>
    Date: Sat, 21 Feb 2009 11:00:20 +0000 (+0100)
    Subject: hwmon: (f71882fg) Hide misleading error message
    
    If the F71882FG chip is at address 0x4e, then the probe at 0x2e will
    fail with the following message in the logs: [...]
    ---
    
    diff --git a/drivers/hwmon/f71882fg.c b/drivers/hwmon/f71882fg.c
    index 67067e9..71556e6 100644
    --- a/drivers/hwmon/f71882fg.c
    +++ b/drivers/hwmon/f71882fg.c
    @@ -837,7 +837,7 @@ static int __init f71882fg_find(int sioaddr, unsigned short *address)
     
            devid = superio_inw(sioaddr, SIO_REG_MANID);
            if (devid != SIO_FINTEK_ID) {
    -               printk(KERN_INFO DRVNAME ": Not a Fintek device\n");
    +               pr_debug(DRVNAME ": Not a Fintek device\n");
                    goto exit;
            }

• references:

  • Patch, Wikipedia;